﻿using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;

namespace Sails.FileMng.Ini
{
    /// <summary>
    /// INI文件读写类。
    /// </summary>
    public class INIFile
    {
        public string path;
        public INIFile(string INIPath)
        {
            path = INIPath;
        }
        public INIFile()
        {
            path = AppDomain.CurrentDomain.BaseDirectory + "config/config.ini";
            if(!Directory.Exists(AppDomain.CurrentDomain.BaseDirectory + "config"))
            {
                Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory + "config");
            }
            if(!File.Exists(path))
            {
                using (StreamWriter sw = new StreamWriter(path, false, Encoding.UTF8))
                {
                    sw.WriteLine("#程序自动生成的配置文件");
                    sw.Close();
                }
            }
        }

        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string defVal, Byte[] retVal, int size, string filePath);
        /// <summary>
        /// 写INI文件
        /// </summary>
        /// <param name="Section"></param>
        /// <param name="Key"></param>
        /// <param name="Value"></param>
        public void IniWriteValue(string Section, string Key, string Value)
        {
            WritePrivateProfileString(Section, Key, Value, this.path);
        }
        /// <summary>
        /// 读取INI文件
        /// </summary>
        /// <param name="Section"></param>
        /// <param name="Key"></param>
        /// <returns></returns>
        public string IniReadValue(string Section, string Key)
        {
            StringBuilder temp = new StringBuilder(255);
            int i = GetPrivateProfileString(Section, Key, "", temp, 255, this.path);
            return temp.ToString();
        }
        public byte[] IniReadValues(string section, string key)
        {
            byte[] temp = new byte[255];
            int i = GetPrivateProfileString(section, key, "", temp, 255, this.path);
            return temp;
        }
        /// <summary>
        /// 删除ini文件下所有段落
        /// </summary>
        public void ClearAllSection()
        {
            IniWriteValue(null, null, null);
        }
        /// <summary>
        /// 删除ini文件下personal段落下的所有键
        /// </summary>
        /// <param name="Section"></param>
        public void ClearSection(string Section)
        {
            IniWriteValue(Section, null, null);
        }
    }
}
